CN212924553U - Intensive sludge discharge type ditch flow type hydrolysis acidification pool - Google Patents

Abstract

The utility model discloses an intensive row mud type ditch flow formula hydrolytic acidification pond, hydrolytic acidification pond includes a plurality of channels ditch flow channels, and the ditch flow channel includes the straight-through section at middle part and the bend section at both ends, connects end to end through the bend between the adjacent ditch flow channel, its characterized in that, underwater propulsor is established to the well lower part of ditch flow channel straight-through section for realize the plug-flow and the circulation of sewage in the ditch flow channel, the sedimentation zone is established to the first half of ditch flow channel straight-through section, and the ditch is established to the sedimentation zone top, and the sedimentation zone below is established and is perforated mud collecting pipe and be connected to the mud outlet channel, establish set sleeve valve in the mud outlet channel and perforate the mud collecting pipe and link to each other. Compared with the prior art, the utility model discloses have advantages such as intensification, low energy consumption, high load, can show the clearance that improves difficult degradation organic matter in the sewage.

Description

Intensive sludge discharge type ditch flow type hydrolysis acidification pool

Technical Field

The utility model belongs to the technical field of sewage treatment, concretely relates to intensive row mud type ditch flow formula hydrolytic acidification pond.

Background

The hydrolysis unit in the urban sewage treatment plant plays an important role, can effectively remove refractory organic matters, improves the biodegradability of the organic matters, and further improves the removal rate of pollutants. The sedimentation tank has the functions of removing suspended substances, realizing sludge-water separation and ensuring the quality of effluent water, wherein the horizontal flow sedimentation tank is widely applied due to the characteristics of simple structure, shallow tank depth, low manufacturing cost, convenient maintenance, impact load resistance and the like. However, in recent years, the land acquisition cost of land has increased, and the construction land has been decreasing, so that the land for sewage plants has been greatly limited.

At present, no process can combine a plurality of water treatment structures with functions of a biological reaction tank, a hydrolysis acidification tank, a horizontal flow sedimentation tank, an inclined tube sedimentation tank (inclined tube sedimentation tank) and the like. Secondly, the existing hydrolysis-acidification pool has the disadvantages of more equipment, high energy consumption, large investment and complex operation management, and brings great difficulty to construction, overhaul and maintenance.

The existing horizontal flow sedimentation tank has shallow depth and low load. When the horizontal sedimentation tank is combined with the hydrolysis acidification tank, if multi-channel stacking is adopted, uniform water distribution and maintenance are not facilitated, and the water depth and the load are both limited. How to realize high load, low energy consumption, intensive arrangement, simple structure, mud discharging and water discharging convenience are the problems that need further research and solution at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an intensive row mud type ditch flow type hydrolytic acidification pond improves the surperficial hydraulic load of hydrolytic acidification pond, sedimentation tank, saves area, has simple structure simultaneously, the construction of being convenient for and advantage such as operation maintenance.

In order to achieve the above purpose, the technical solution of the present invention is as follows: the utility model provides an intensive mud type ditch flow formula hydrolytic acidification pond, hydrolytic acidification pond includes a plurality of channels ditch flow channels, and the ditch flow channel includes the straight-through section at middle part and the bend section at both ends, connects end to end through the bend between the adjacent ditch flow channel, its characterized in that, underwater propulsor is established to the well lower part of ditch flow channel straight-through section for realize the plug flow and the circulation of sewage in the ditch flow channel, sedimentation zone is established to the first half of ditch flow channel straight-through section, and the canal is established to the sedimentation zone top, and the sedimentation zone below is established the perforation mud collecting pipe and is connected to out the mud channel, establish the sleeve valve in the mud channel and link to each other with perforation mud collecting pipe, the sedimentation zone is used for realizing mud-water separation, and the supernatant is discharged through the outlet canal of its top, and mud is then discharged the mud channel through the perforation mud collecting pipe of its below, then discharges through the sleeve valve.

Further, the number of the submersible propellers arranged on each channel straight section is 1-5, the effective flow pushing distance is 10-50 m, and the number and the effective flow pushing distance of the submersible propellers can be adjusted according to the length of the channel.

Furthermore, the middle part of the hydrolysis acidification tank is provided with a water inlet gate and a sludge inlet gate which are used for bringing the water from the sewage treatment plant and the sludge returned by the subsequent treatment structures into end-to-end ditch channels.

Further, the longitudinal slope of the bottom of the mud outlet channel pool is not less than 1%.

Further, the sedimentation zone is an inclined plate sedimentation zone or a triangular sedimentation zone, the installation angle of an inclined plate in the inclined plate sedimentation zone is 45-75 degrees, and the angle of the maximum angle of a triangle in the triangular sedimentation zone is 60-90 degrees.

Preferably, the sedimentation zone of the hydrolysis acidification tank is positioned in the middle or at the tail end of all channeling channels of the hydrolysis acidification tank, and the tank depth is generally consistent with or deeper than that of the hydrolysis acidification tank as the case may be.

Preferably, the inclined plates or the triangles in the inclined plate sedimentation zone or the triangular sedimentation zone are made of concrete or stainless steel, mud and water are separated in the inclined plate sedimentation zone or the triangular sedimentation zone, and the treated tail water is discharged into a downstream sewage treatment structure through the water collecting tank.

Preferably, the bottom of the sedimentation zone body of the hydrolysis acidification tank collects the sludge through a perforated sludge collecting pipe without a sludge hopper, the sludge collecting zone is arranged on one side of the channel, a sludge discharge sleeve valve is arranged, and the sludge is discharged to the tail end sludge outlet main channel after being collected.

This intensification hydrolysis-acidification pool adopts the ditch flow formula channel, has realized efficient mud, separation of water through swash plate (triangle) settling zone, and the perforation sludge collecting pipe dispersion sludge collection that arranges through the cell body bottom does not establish the sludge bucket, has avoided traditional advection formula sedimentation tank to arrange the shortcoming that mud is unsmooth and mud in the mud bucket ferments easily, arranges the adoption when requiring higher in restriction of sewage plant land, intensification, guarantees out water quality of water effect. Meanwhile, the hydrolysis acidification tank can be provided with a sludge inlet gate for returning the residual sludge in the secondary sedimentation tank to the hydrolysis acidification tank, so that the water purification effect of the hydrolysis acidification tank is further provided. Compared with the prior art, the utility model, have following advantage and beneficial effect:

1) the hydrolytic acidification zone has high load and saves the occupied area. The hydrolysis acidification pool is arranged in a channel flow mode, and equipment is simple. In order to consider the operation of the sedimentation tank, the flow rate in the ditch is low, and the energy consumption is greatly saved.

2) The hydrolysis acidification tank is preset with a secondary sedimentation tank sludge backflow gate. The activated sludge is sent to the hydrolysis acidification tank, so that the precipitation effect of the hydrolysis acidification tank can be effectively improved, and the removal efficiency of the hydrolysis acidification tank is greatly improved.

3) The sedimentation zone combines the advantages of a horizontal sedimentation tank and an inclined plate (triangular) sedimentation zone, greatly improves the surface hydraulic load of the sedimentation tank and greatly saves the occupied area.

4) Disperse and collect the mud, discharge the mud smoothly. The bottom of the settling zone body collects the sludge by arranging the perforated sludge collecting pipe without arranging a sludge hopper, thereby avoiding the defects of unsmooth sludge discharge and easy sludge fermentation of the traditional settling tank.

5) Simple structure, construction and maintenance are convenient. The hydrolysis acidification area and the precipitation area have basically consistent water depth, are dispersedly arranged, avoid repeated superposition of multiple channels, and are favorable for civil engineering construction and future equipment maintenance.

Drawings

FIG. 1 is a plan view of an intensive sludge discharge type channel flow type hydrolysis acidification tank provided by the present invention; FIG. 2 is a sectional view taken along line A-A of FIG. 1 (inclined plate sedimentation zone type); FIG. 3 is a sectional view taken along line A-A of FIG. 1 (a triangular precipitation zone type); figure 4 is a B-B cross-sectional view of bitmap 1.

In the figure, 1-channeling; 2-a water inlet gate; 3-a mud inlet gate; 4-a submersible propeller; 5-inclined plate (triangular) settling zone; 6-perforating a sludge collecting pipe; 7-water outlet channel; 8-a mud outlet channel; 9-sleeve valve.

Detailed Description

The following describes the present invention with reference to the accompanying drawings.

The utility model provides an intensive row mud type ditch flow formula hydrolytic acidification pond, hydrolytic acidification pond includes the ditch flow channel 1, enters water gate 2, advances mud gate 3, dive propeller 4, swash plate (triangle) settling zone 5, perforation mud collecting pipe 6, goes out ditch 7, goes out ditch 8 and sleeve valve 9. The hydrolysis acidification zone of the hydrolysis acidification sedimentation tank adopts a channel arrangement mode, the water inlet channel is arranged at one end of the hydrolysis acidification zone, and a sedimentation water outlet channel 7 is arranged in the middle of all channel channels 1 or the middle of the tail end channel 1. The precipitated water zone is divided into three layers, the lowest part is a sludge discharge pipe, the middle layer is an inclined plate (triangular) precipitation zone 5, and the upper layer is a water outlet groove. The effluent is separated from clear water and sludge through an inclined plate (triangular) settling zone 5, wherein the clear water is discharged through a drainage channel, the sludge is discharged through a perforated sludge collection pipe 6 at the bottom of the tank and a sleeve valve 9, and then enters a sludge outlet main channel after being collected by the sludge zone, and the sludge is discharged to a sludge storage tank through a sludge pump.

And the middle part of the drainage channel 1 is provided with a water inlet gate 2 and a sludge inlet gate 3 which are used for bringing water from a sewage treatment plant and sludge returned by a subsequent treatment structure into the end-to-end drainage channel. Wherein the water inlet gate is connected with the water inlet channel and is used for introducing water from a sewage treatment plant; the sludge inlet gate 3 is connected with the sludge inlet channel, the sludge inlet channel can be connected to the secondary sedimentation tank, the activated sludge is conveyed to the hydrolysis acidification tank, the sedimentation effect of the hydrolysis acidification tank can be effectively improved, and the removal efficiency of the hydrolysis acidification tank is greatly improved.

The submersible propeller 4 is positioned at the middle lower part of the straight section of the channel 1 and is used for realizing the flow pushing and the circulation of the sewage in the channel 1.

The number of the submersible propellers 4 arranged at the straight section of each channel 1 is 3, the effective flow pushing distance is 30m, and the number and the effective flow pushing distance of the submersible propellers 4 can be adjusted according to the length of the channel 1.

The sloping plate (triangular) settling zone 5 is positioned at the upper half part of the straight section of the channel 1 and used for realizing mud-water separation, supernatant is discharged through a water outlet channel 7 above the sloping plate (triangular) settling zone, settled mud is discharged into a mud outlet channel 8 through a perforated mud collecting pipe 6 below the sloping plate (triangular) settling zone and then is discharged through a sleeve valve 9.

The lower part of the inclined plate (triangular) sedimentation water outlet area collects and guides the precipitated sludge to a sludge outlet channel 8 arranged at the opposite side of the drainage channel 1 through the perforated sludge collecting pipe 6; the tail end of the perforated sludge collecting pipe 6 is provided with a sleeve valve 9 for controlling the sludge discharge flow; and the sludge outlet channel 8 discharges sludge according to the longitudinal slope of the bottom of the tank which is not less than 1%.

The inclined plate (triangle) sedimentation zone 5 is divided into two types of an inclined plate and a triangle, the installation angle of the inclined plate is 60 degrees (the included angle between the inclined plate and the horizontal plane), and the maximum angle of the triangle is 60 degrees.

The hydrolysis acidification sedimentation tank is positioned in the middle of all the channel channels 1 or the middle of the tail end channel 1, and the tank depth is generally the same as the tank depth of the hydrolysis acidification tank or deeper than the hydrolysis acidification zone according to the situation.

The hydrolysis acidification pool sedimentation zone middle part is established swash plate (triangle) sedimentation zone 5, can be for materials such as concrete material or stainless steel, realizes mud, separation of water at swash plate (triangle) sedimentation zone 5, and the tail water after handling discharges into low reaches sewage treatment structure through the water catch bowl.

The bottom of the sedimentation zone body of the hydrolysis acidification tank collects mud through a perforated mud collecting pipe without a mud bucket, the mud collecting zone is arranged on one side of the channel, a mud discharging sleeve valve 9 is arranged, and mud is discharged to the tail end mud outlet main channel after being collected.

The protection of the present invention is not limited to the above embodiments. Variations and advantages that may occur to those skilled in the art may be incorporated into the invention without departing from the spirit and scope of the inventive concept, and the scope of the appended claims is intended to be protected.

Claims (7)

1. The utility model provides an intensive mud-discharging type ditch flow formula hydrolytic acidification pond, hydrolytic acidification pond includes a plurality of channels ditch flow channels, and the ditch flow channel includes the straight-through section at middle part and the bend section at both ends, connects end to end through the bend between the adjacent ditch flow channel, its characterized in that, the underwater propulsor is established to the well lower part of ditch flow channel straight-through section for realize in the ditch flow channel sewage push away flow and circulation, sedimentation zone is established to the first half of ditch flow channel straight-through section, and the ditch is established to the sedimentation zone top, and the sedimentation zone below is established and is perforated mud pipe connection to mud outlet channel, establish the sleeve valve in the mud outlet channel and link to each other with perforation mud pipe.

2. The intensive sludge-discharging type channel-type hydrolysis acidification tank as claimed in claim 1, wherein the number of the submersible propellers arranged in each channel straight section is 1-5, and the effective propelling distance is 10-50 m.

3. The integrated sludge drainage type trench type hydrolytic acidification tank as claimed in claim 1, wherein a water inlet gate and a sludge inlet gate are arranged in the middle of the hydrolytic acidification tank for introducing the sewage treatment plant water and the sludge returned by the subsequent treatment structures into the end-to-end trench channels.

4. The intensive sludge drainage type channel-type hydrolytic acidification tank as claimed in claim 1, wherein the longitudinal slope of the bottom of the sludge drainage tank is not less than 1%.

5. The intensive sludge-discharging type channel-flow hydrolysis acidification tank as claimed in claim 1, wherein the sedimentation zone is an inclined plate sedimentation zone or a triangular sedimentation zone, the installation angle of the inclined plate in the inclined plate sedimentation zone is 45-75 degrees, and the angle of the maximum angle of the triangle in the triangular sedimentation zone is 60-90 degrees.

6. The intensive sludge draining type ditch flow type hydrolysis acidification tank as claimed in claim 5, wherein the inclined plates or the triangles in the inclined plate sedimentation zone or the triangle sedimentation zone are made of concrete or stainless steel.

7. The intensive sludge draining type channel type hydrolytic acidification tank as claimed in claim 1, wherein the sedimentation zone of the hydrolytic acidification tank is located in the middle or at the end of all the channel channels of the hydrolytic acidification tank.

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